Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1996-06-17
1998-11-17
Bell, Mark L.
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 316, 106 3186, 106 3188, 106413, 106429, 106445, 106447, 106448, 106460, 106465, 106471, 106487, 106491, 106493, 106494, 106495, 106496, 106497, 106498, 106499, C09B 6750
Patent
active
058370455
ABSTRACT:
A surface-modified colored pigment is disclosed which includes a colored pigment having no primary amines and at least one attached hydrophilic organic group, wherein said organic group comprises a) at least one aromatic group, and b) at least one ionic group or ionizable group, or a mixture of an ionic group or an ionizable group. The colored pigment may be blue, brown, cyan, green, violet, magenta, red, orange, yellow, mixtures thereof and the like. The surface-modified colored pigment, due to the hydrophilic groups on its surface, is readily dispersed in a liquid vehicle without the addition of a surfactant or other dispersing aid or additive. The surface-modified color pigment may be used in a variety of aqueous systems including, but not limited to, coatings, paints, papers, adhesives, latexes, inks, toners, textiles and fibers. In addition, an aqueous composition is disclosed including water-based liquid vehicle and the surface-modified colored pigment described above. Also disclosed is an ink composition including a water-based liquid vehicle and the surface-modified colored pigment described above. Finally, a process is disclosed for preparing the surface-modified colored pigments having no primary amines and at least one attached hydrophilic organic group, wherein said organic group comprises a) at least one aromatic group, and b) at least one ionic or ionizable group, or a mixture of an ionic group or an ionizable group.
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Belmont James A.
Johnson Joseph E.
Bell Mark L.
Cabot Corporation
Hertzog Scott L.
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